A vulnerability in the gRPC code of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the emsd service stops.
The vulnerability is due to the software's inability to process HTTP/2 packets. An attacker could exploit this vulnerability by sending a malformed HTTP/2 frame to the affected device. A successful exploit could allow the attacker to create a DoS condition when the emsd service stops.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
http://ift.tt/2xT8fEL
Security Impact Rating: Medium
CVE: CVE-2017-12270
from Cisco Security Advisory http://ift.tt/2xT8fEL
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